In 815 AD, the tenth year of the reign of Emperor Xianzong of the Tang Dynasty (Yuanhe), after experiencing the Anshi Rebellion, all walks of life had returned to a stable and peaceful life. However, Huaixi, Chengde, Qingqing and other places were all rebellious, and there were several forces in the rivers and lakes. There are fights overt and covert, but the leader of the Demon Cult who is supposed to shoulder the important task has been missing for ten years without a trace. The young knight Shen Wenjie takes on the important task of calming down the crisis in the world and helping the court eliminate the rebellion. Various incidents occurred during this period. Please read this book carefully! !